Protector for incandescent mantles.



M. BENDIX. PROTECTOR FOR INOANDESGENT MANTLES. APPLICATION FILED JAN.11, 1910.

1,01 ,391; Patented Feb. 6, 1912.

COLUMBIA I'MNUGRAPH LO.,WASII|NGTON, u. c.

MAX BENDIX, OF COLOGNE, GERMANY.

PROTECTOR FOR INGANDESGENT MANTLES.

Specification of Letters Patent.

Patented Feb. 6, 1912.

Application filed January 11, 1910. Serial No. 537,527.

To all whom it may concern:

Be it known that I, MAX BnNDIx, a subject of the King of Prussia,residing at Cologne, in the Empire of Germany, have invented certain newand useful Improvements in Protectors for Incandescent Mantles, of whichthe following is a specification.

This invention relates to incandescent bodies or mantles forilluminating purposes, made. of the well known material hitherto used,and in particular, to mantles for this purpose which are secured to thewellknown supporting rings in any desired or suitable manner, such, forexample, as by sewing. The incandescing mantles for this purpose, ashitherto made and prepared for packing, were subject to the disadvantagethat they could not well be maintained in the desired shape duringtransportation. These mantles, as is known, are generally shipped-readyfor use, except that they must first be burned off. For so shipping theyare placed individually in small cardboard boxes from which they areremoved when needed for use. Owing to the method of packing, usuallyadopted, the mantle occupies a flattened out or compressed position inthe box, and when it is taken out for use it retains such shape and itis not possible-to restore it to its original shape by pulling out orstretching the same in view of the fragile nature of the material andfor other reasons. Such a flattened mantle, as has been proved byexperience, is not durable and, besides, it has a smaller illuminatingpower.

It is the object of the present invention to overcome thesedisadvantages arising from the packing, shipping and manipulae tion ofthe mantles as hitherto used, and with this object in view, the saidinvention consists in the features and combinations of parts now to bedescribed and to be particularly pointed out in the claims.

In the accompanying drawing: Figure 1 represents a side elevation of amantle-supporting ring with an old form of mantle indicated thereon indotted lines; and Fig. 2 represents a mantle supporting ring providedwith a protecting device under my invention.

In these drawings, 0 represents a mantlesupporting ring of the usualform, and in Fig. 1 I have indicated in dotted lines a mantle b securedto said supporting ring. This mantle, it will be noted, is flattenedout,

said flattening out being due to the mode of packing hitherto employed.This flattened shape the mantle will retain for the reason that it isimpossible to return it to its original and elongated form by pullingout or stretching. In order to obviate this difficulty I provide theusual incandescing mantle 6, before the same has been burned off, with aband-like device a which, as shown, is laid around the mantle b at thepoint where it is joined or connected to the ring 0, said band, as shownin Fig. 2, extending some distance below such point of connection. Saidband-like device may consist of a band of paper or of rubber or of othersuitable material, and when laid around the mantle, as stated, has itsends secured by causing them to overlap, as shown, the ends beingsecured by glue or by tying or by any other suitable auxiliary means. Itis essential that the securing band fit tightly around the mantlewithout, however, injuring the same. This protecting band, as has beenfound, serves to keep the mantle in its desired shape duringtransportation when packed in the usual manner, and will effectivelyavoid the danger of its becoming crushed or flattened, as indicated inFig. 1.

When it is desired to put the burner in place on the lamp and use it,the band-like device a is removed, said removal being effected beforethe mantle is placed on the burner. The mantle can then be burned oifand used for illumination in the ordinary way.

It will be seen from the above that an important feature of my inventionlies in the fact that an unburned incandescent mantle or illuminatingbody is provided with a removable band of sheet material which isapplied at the point where the mantle is connected to the supportingring, and each of these features materially distinguishes this inventionfrom the method hitherto employed of strengthening mantles after theyhave beenburned off by the application of a fixed and not removablelayer of colloid or similar material.

l/Vhat I claim and desire to secure by Letters Patent is 1. A mantlesupporting ring and mantle for incandescent lighting secured to saidsupporting ring, in combination with a re movable band of sheet materialplaced around the mantle at the portion in contact with the ring, saidband extending beyond with the ring,

said band extending beyond the ring. the ring.

2. A mantle supporting ring and mantle for incandescent lighting securedto: said MAX BENDIX' 5 supporting ring, in combination with a re- Inpresence of movable fiat, stiffening band of paper placed v LoUIsVANDORY,

around the mantle at the portion in contact SAMUEL D. WARREN, J r.

Copies 01 this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' Washington, D. 0.

